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Cryptographic Puzzle Challenges/sandwich: Difference between revisions

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In short there are Bit Masks for QR encoding that have to be used here to get a readable QR Code.
In short there are Bit Masks for QR encoding that have to be used here to get a readable QR Code.


For this the encoded QR code has to be overlayed with the mask, which is tiled to make an 21x21pixel image - equivalent to the dimensions of the CeasersThree.png  
For this the encoded QR code has to be overlayed with the mask, which is tiled to make an 21x21pixel image - equivalent to the dimensions of the CaesarsThree.png  


Every Pixel where the Mask is coloured, the Pixel in the CaesarsThree.png needs to be flipped - Is it black, make it white and vice versa - until a device readable QR code is revealed  
Every Pixel where the Mask is coloured, the Pixel in the CaesarsThree.png needs to be flipped - Is it black, make it white and vice versa - until a device readable QR code is revealed